New version of Biom3d!
Most of the bugs have been solved:
* Preprocessing has been improved and takes multi channel images into account.
* Added Postprocessor module for ensemble prediction.
* Logs and metadata are now stored in the log folder.
* Finetuning works.
* Bug associated with the graphical user interface have been solved (tkinter, multiprocessing, matplotlib etc.)
New simplified GUI ! (cf. below and documentation).